Keyless Starting System: Testing and Inspection

Access/Start Authorization, KESSY

Always follow the instructions in the Repair Information exactly when disconnecting and connecting the battery. Refer to battery in engine compartment => [ Battery, Disconnecting and Connecting ] Service and Repair or battery in luggage compartment => [ Battery, Disconnecting and Connecting ] Service and Repair.

• Additional information:

Refer to the Owner's Manual.

DTC Recognition and Display

The access/start authorization system has OBD.

Use the Vehicle Diagnostic Tester under "Guided Fault Finding".

General Information

The KESSY Access system regulates keyless opening, locking and starting of the vehicle.

Opening

The ID sensor in ignition key must be located within reception range of lock location (approximately 5 feet (1.5 meters)). The proximity sensor located on the inside of the door handle is activated whenever the handle is touched. This then speaks to the ID sensor inside the key and the door unlocks immediately if the identification is valid. Pulling the door handle opens the vehicle.

Starting

The ID sensor in ignition key must be located in the vehicle interior. The clutch pedal must pressed on manual transmission vehicles. On vehicles with an automatic transmission and DSG, the selector lever must be in "P" and the brake pedal must be pressed. Press the start system button (E378) briefly. This speaks to the ID sensor in the key and if the identification is valid, the steering wheel unlocks and the vehicle can be started.

It is only possible to start the engine with the start system button (E378) when a valid ID sensor is located in the vehicle interior.

Locking

The ID sensor in ignition key must be located within reception range of lock location (approximately 5 feet (1.5 meters)). Touching the locking sensor on the outside of the door handle activates the sensor. This then speaks to the ID sensor inside the key and the vehicle unlocks if the identification is valid.

The access/start authorization control module (J518) controls all access/start functions. Refer to => [ Access/Start Authorization Control Module (J518) ] Description and Operation.